| 摘要 |
<p>The present invention is related to a manually adjustable toothbrush, it comprises of a fixed brushhead (18), a movable brushhead (17), an axis (19), a brushhandle (21) and a manual controller (20). The fixed brushhead has a hole in the length direction, the movable brushhead disposed in the hole, the manual controller which integrates with the brushhandle is also disposed in the hole and mates with the end of the movable brushhead. The manual controller adjusts the movable brushhead to make it raised or descended relative to the fixed brushhead, so the surface of the brushhead can be concave or convex, thereby cleaning teeth throughout and avoiding toothpaste dropping from the toothbrush. The manually adjustable toothbrush can have four different types of manual controller, such as folding-control type, drawing-control type, screwing-control type and pushing-control type.</p> |
